121 lines
3.8 KiB
Java
121 lines
3.8 KiB
Java
/*
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* Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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@test
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@key headful
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@bug 4187912
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@summary Test that some incorrectly written DnD code cannot hang the app
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@run main NotReallySerializableTest
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*/
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import java.awt.Button;
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import java.awt.Cursor;
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import java.awt.Point;
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import java.awt.Toolkit;
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import java.awt.datatransfer.StringSelection;
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import java.awt.dnd.DnDConstants;
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import java.awt.dnd.DragGestureEvent;
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import java.awt.dnd.DragGestureListener;
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import java.awt.dnd.DragGestureRecognizer;
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import java.awt.dnd.DragSource;
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import java.awt.dnd.DragSourceAdapter;
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import java.awt.dnd.DragSourceContext;
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import java.awt.dnd.DropTarget;
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import java.awt.dnd.DropTargetAdapter;
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import java.awt.dnd.DropTargetDropEvent;
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import java.io.IOException;
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import java.io.ObjectOutputStream;
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import java.io.OutputStream;
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import java.io.Serializable;
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import java.util.ArrayList;
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public class NotReallySerializableTest {
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public static void main(String[] args) throws IOException {
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Toolkit tk = Toolkit.getDefaultToolkit();
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DragGestureRecognizer dgr = tk.createDragGestureRecognizer
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(java.awt.dnd.MouseDragGestureRecognizer.class,
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DragSource.getDefaultDragSource(), new Button(),
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DnDConstants.ACTION_LINK, new TrickDragGestureListener());
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DragGestureEvent dge = new DragGestureEvent
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(dgr, DnDConstants.ACTION_LINK, new Point(0, 0),
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new TrickList());
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DragSourceContext dsc = new DragSourceContext(dge,
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Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR),
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null, null, new TrickTransferable(),
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new TrickDragSourceListener());
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DropTarget dt = new DropTarget(new Button(),
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new TrickDropTargetListener());
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ObjectOutputStream stream = new ObjectOutputStream
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(new OutputStream() {
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public void write(int b) {}
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});
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stream.writeObject(dgr);
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stream.writeObject(dge);
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stream.writeObject(dsc);
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stream.writeObject(dt);
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System.out.println("test passed");
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}
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}
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class TrickList extends ArrayList implements Serializable {
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Object trick = new Object();
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TrickList() {
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add(trick);
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}
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}
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class TrickDragGestureListener implements DragGestureListener, Serializable {
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Object trick = new Object();
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public void dragGestureRecognized(DragGestureEvent dge) {}
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}
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class TrickTransferable extends StringSelection implements Serializable {
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Object trick = new Object();
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TrickTransferable() {
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super("");
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}
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}
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class TrickDragSourceListener extends DragSourceAdapter
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implements Serializable
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{
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Object trick = new Object();
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}
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class TrickDropTargetListener extends DropTargetAdapter
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implements Serializable
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{
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Object trick = new Object();
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public void drop(DropTargetDropEvent dtde) {}
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}
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